Tend.ai developed cloud robotics solution that enables a robotic arm to operate your 3d printer farm. You do not need to know how to program the robot since it uses a webcam and machine learning to figure out triggers and actions it needs to do. You basically show it what to do.
Since it can work non-stop, you can have a small manufacturing robotic cell in your workshop or home. it goes without saying it can operate other machines as well, such as CNCs or laser cutters.
One thing comes to mind: since you can get orders from the web, use a robot to operate your 3d printer, and package the objects, you will just probably need to send them via delivery service. That can probably also be automated... You see where I'm going ...